
onload = function () {
    var click_cnt = 0;
    var content = ['富强', '民主', '文明', '和谐', '自由', '平等', '公正', '法治', '爱国', '敬业', '诚信', '友善', '❤', '❤', '❤', '❤', '❤', '❤', '❤', '❤', '❤'];
    var $html = document.getElementsByTagName("html")[0];
    var $body = document.getElementsByTagName("body")[0];
    function getRandomInt (max) {
      return Math.floor(Math.random() * Math.floor(max));
    }
    function getRandomColor () {
  
      return '#' +
  
        (function (color) {
  
          return (color += '0123456789abcdef'[Math.floor(Math.random() * 16)])
  
            && (color.length == 6) ? color : arguments.callee(color);
  
        })('');
  
    }
    $html.onclick = function (e) {
      var $elem = document.createElement("b");
      $elem.style.color = getRandomColor();
      $elem.style.zIndex = 9999;
      $elem.style.position = "absolute";
      $elem.style.select = "none";
      $elem.style.userSelect = "none";
      var x = e.pageX;
      var y = e.pageY;
      $elem.style.left = (x - 10) + "px";
      $elem.style.top = (y - 20) + "px";
      clearInterval(anim);
      if (click_cnt > content.length - 1) {
        click_cnt = 0
      }
      $elem.innerText = content[click_cnt];
      // 按序展示
      // ++click_cnt;
      // 随机展示
      click_cnt = getRandomInt(content.length);
      $elem.style.fontSize = Math.random() * 10 + 8 + "px";
      var increase = 0;
      var anim;
      setTimeout(function () {
        anim = setInterval(function () {
          if (++increase == 150) {
            clearInterval(anim);
            $body.removeChild($elem);
          }
          $elem.style.top = y - 20 - increase + "px";
          $elem.style.opacity = (150 - increase) / 120;
        }, 8);
      }, 70);
      $body.appendChild($elem);
    };
  };